Transcript COST 723

COST MC Meeting
Sofia, May 19 2006
Data Exploitation and Modeling for the Upper
Troposphere and Lower Stratosphere
www.cost723.org
William Lahoz
COST MC Meeting
Sofia, May 19 2006
Scope and Structure
Altitude region around the tropopause is crucial for earths energy balance
(water vapor cooling below, ozone heating above).
Chemical, microphysical, and dynamical processes not well understood .
Model and data studies for the
UTLS altitude region.
Assimilation as the central tool
to consolidate models and
observations.
WG2
3 Workgroups for the 3 areas.
WG1
WG3
Common workshops for all
workgroups.
William Lahoz
COST MC Meeting
Sofia, May 19 2006
Countries
Belgium, Bulgaria, Cyprus, Czech Republic,
Denmark, Finland, France, Germany, Greece, Italy,
the Netherlands, Norway, Poland, Spain, Sweden,
Switzerland, UK
William Lahoz
COST MC Meeting
Sofia, May 19 2006
Chairmen and Working Groups
Chair: William Lahoz (University of Reading)
Vice-chair: Bernard Legras (LMD)
WG1: Data and measurement techniques
(S. Buehler)
WG2: An assimilated ozone and humidity dataset
(W. Lahoz)
WG3: Assessing the state of the UTLS and
understanding the relevant processes
(B. Legras)
William Lahoz
COST MC Meeting
Sofia, May 19 2006
Sofia Workshop
What do I expect?
Strengthening of links between Bulgaria and other European scientists
Overview of WGs 1-3
Examples of COST 723 work
Exploration of collaborations: between COST 723 partners; between
COST 722 & 723
COST 722: “Short-range forecasting methods of fog, visibility & low
clouds”
Preparation for a new COST action: e.g. integration of in situ networks
and satellite data (Nik Kaempfer)
William Lahoz
COST MC Meeting
Sofia, May 19 2006
Data Exploitation and Modeling for the Upper
Troposphere and Lower Stratosphere
www.cost723.org
WG1 Activities
William Lahoz
COST MC Meeting
Sofia, May 19 2006
Overview
Focus on humidity measurements
Improvements of different techniques and
intercomparisons
– In Situ
– Ground Based
– Satellite
Summary and Conclusions
William Lahoz
COST MC Meeting
Sofia, May 19 2006
In Situ
MOL Lindenberg (RS80, RS92)
FMI Sodankylä (LAUTLOS campaign)
William Lahoz
COST MC Meeting
Sofia, May 19 2006
Ground Based
Uni Bern (Microwave)
CNR-IMAA Potenza (LIDAR)
CNR-ISAC Rome (LIDAR)
William Lahoz
COST MC Meeting
Sofia, May 19 2006
Satellite
Chalmers Göteborg (Odin SMR)
HIPC Prague (Odin SMR isotopes)
Uni Bremen (AMSU-B)
William Lahoz
COST MC Meeting
Sofia, May 19 2006
Summary and Conclusions
A lot of ongoing activities (19 publications so far
on www.cost723.org/publications)
Intercomparisons give valuable insights
– Inside a technique by different instruments
– Across different techniques
A pity to stop the good collaboration now
 Suggestion for a follow-up action
William Lahoz
COST MC Meeting
Sofia, May 19 2006
WG2: An assimilated ozone and
humidity dataset
Our role/goal:
•DA used to incorporate novel observations (e.g.
ozone & stratospheric water vapour in UTLS), &
evaluate research satellite data (e.g. Envisat).
•Incorporate chemical data (e.g. ozone, water
vapour from Envisat) into DA systems.
William Lahoz
COST MC Meeting
Sofia, May 19 2006
Activities:
How to incorporate chemistry?
•GCM assimilation (DARC, Met Office, ECMWF;
3d-var, 4d-var) – linear chemistry
•CTM assimilation (KNMI, BIRA-IASB, U. KÖLN,
UPMC; var methods, variants of KF)
•Coupled GCM/CTM assimilation (MF; 4d-var)
Links with ASSET EU project
(http://www.darc.nerc.ac.uk/asset)
William Lahoz
COST MC Meeting
Sofia, May 19 2006
Activities:
Envisat cal-val
•GCM (MIPAS: DARC/Met Office, ECMWF)
•CTM (SCIA/MIPAS/GOMOS: KNMI, BIRA-IASB, UPMC)
http://envisat.esa.int/workshops/acve2/presentations
Ozone intercomparison project
ASSET partners
Paper submitted to ACPD: Geer et al. (2006), accepted
http://darc.nerc.ac.uk/asset
William Lahoz
COST MC Meeting
Sofia, May 19 2006
William Lahoz
COST MC Meeting
What comes from these studies: key ideas in chemical DA
Sofia, May 19 2006
•Ozone DA key driver in NWP & chemical models; not as much benefit as
originally hoped in NWP
Key reason: relatively poor information content of ozone data available
from current operational satellites -> Need more data (IASI, GOME-2,…)
•Important area for NWP & chemical model DA: estimation of B
Needs to take account of physical & chemical principles & statistical data
One of biggest challenges in DA
•Bias an important issue in DA -> estimation of biases a major challenge
Observations & models confronted to identify & attribute biases
Implementation of bias correction schemes active field of research
William Lahoz
COST MC Meeting
Sofia, May 19 2006
•Model deficiencies in transport & chemistry limit value of DA
V. difficult for assimilated data to represent processes on
timescales much longer than typical assimilation cycle – O(weeks to
months)
•Expanding area for future DA activities is likely to be air quality
Experience gained in stratospheric chemical DA -> starting point for
tackling technical problems associated of tropospheric chemical DA
•Currently a wealth of constituent data from research satellites
Danger that this will diminish just as DA techniques to exploit those
data reaching maturity -> What happens after Envisat & Eos Aura?
William Lahoz
COST MC Meeting
Finally…
Sofia, May 19 2006
•DA invaluable for use of stratospheric constituent measurements:
•Fills gaps between observations
•Allows use of heterogeneous measurements
•Numerical model -> information to be propagated forward in time:
combination of measurements available at different times & locations
•Properly applied, DA can add value to observations & models, compared
to information that each can supply on their own
•DA underpins evaluation of impact of current observation types using
OSEs, and future global observing system using OSSEs
DA ADDS VALUE
BUT, for proper use, limitations must be borne in mind
William Lahoz
COST MC Meeting
Sofia, May 19 2006
Achievements:
•Assimilation of Envisat data & cal-val
•Intercomparison of ozone analyses
•Address complexity of chemistry for DA
•Ozone forecasts (stratosphere/troposphere)
•Publications
•Summer schools (lectures & organization)
•Invited presentations at international meetings
William Lahoz
COST MC Meeting
Sofia, May 19 2006
Summary
COST 723 WG2 is on a good track.
A lot of work via ASSET (Envisat)
Links with SPARC community (workshop in Oct
2006)
Plans for Eos Aura
New COST action?: integration between in situ
network and satellite data
William Lahoz
COST MC Meeting
Sofia, May 19 2006
WG3 ACTIVITY
Climatology
B. Kois (Poland): Changes in the UT/LS over Central Europe
B. Legras & F. d'Ovidio (France): Climatology of mixing in the UT/LS
Transport in the UT/LS
I. Pisso & B. Legras (France): Pollution plume in the UT
B. Legras (France): Age of air
Stratosphere-troposphere exchange
E. Gerasopoulos, P. Zanis et al. (Greece) : Deep penetration of stratospheric air over
Eastern Mediterranea
R. James & B. Legras (France): Mixing at the tropopause and upper-level frontogenesis
Parametrization of micro-physical processes
K. Gierens (Germany): A new ice scheme in the ECMWF model
William Lahoz
COST MC Meeting
Sofia, May 19 2006
COST 723 UTLS Summer school
3-15 October 2005
Cargese, Corsica
Topics:
- UTLS measurement techniques
- data assimilation
- modelling studies of the UTLS
Support from: COST/ESF;
CNRS/CNES; UCAR/NSF
Audience
- researchers + students (school/workshop)
Format
- 18 ½ lecturers, ~75 participants
-- lectures -> http://www.cost723.org/school
-- extra presentations (eg writing skills)
-- discussion panels
- posters
William Lahoz
COST MC Meeting
Sofia, May 19 2006
Lecturers:
17 ½ lecturers
Observations: S. Buehler, J.-P. Cammas, B.
Carli, H. Kelder, P. Levelt, L. Moyer, G. Vaughan
Data assimilation: F. Bouttier, D. Fonteyn(*),
W.A. Lahoz, R. Swinbank, O. Talagrand
Modelling: M. Baldwin, A. Gettelman, K. Gierens,
B. Legras, A. O’Neill, H. Wernli
(*) Unable to attend – lectures given by W.A.
Lahoz
William Lahoz
COST MC Meeting
Sofia, May 19 2006
Students:
128 applicants from 44 countries, all continents (except
Antarctica!)
Final list: 73 students; 31 male & 42 female
Statistics follow in the MC presentation...
William Lahoz
COST MC Meeting
Sofia, May 19 2006
William Lahoz
COST MC Meeting
Sofia, May 19 2006
William Lahoz
COST MC Meeting
Sofia, May 19 2006
Publications
ACP Special Issue
Data exploitation and modeling for the upper troposphere and lower stratosphere (COST 723)
Editor(s): W. Lahoz, S. A. Buehler, and D. McKenna
A practical demonstration on AMSU retrieval precision for upper tropospheric humidity by a non-linear multi-channel
regression method
C. Jiménez, P. Eriksson, V. O. John, S. A. Buehler
Page(s) 451-459. SRef-ID: 1680-7324/acp/2005-5-451
Abstract Print Version (444 KB) Discussion Paper Special Issue SRef Overview
11.02.2005
Water vapour and ozone profiles in the midlatitude upper troposphere
G. Vaughan, C. Cambridge, L. Dean, A. W. Phillips
Page(s) 963-971. SRef-ID: 1680-7324/acp/2005-5-963
Abstract Print Version (2605 KB) Discussion Paper Special Issue SRef Overview
21.03.2005
A case study on the formation and evolution of ice supersaturation in the vicinity of a warm conveyor belt's outflow region
P. Spichtinger, K. Gierens, H. Wernli
Page(s) 973-987. SRef-ID: 1680-7324/acp/2005-5-973
Abstract Print Version (3751 KB) Discussion Paper Special Issue SRef Overview
22.03.2005
Formation of ice supersaturation by mesoscale gravity waves
P. Spichtinger, K. Gierens, A. Dörnbrack
Page(s) 1243-1255. SRef-ID: 1680-7324/acp/2005-5-1243
Abstract Print Version (1986 KB) Discussion Paper Special Issue SRef Overview
William Lahoz
COST MC Meeting
Sofia, May 19 2006
Publications
ACP Special Issue
30.05.2005
Analysis of water vapor LIDAR measurements during the MAP campaign: evidence of sub-structures of stratospheric intrusions
P. D'Aulerio, F. Fierli, F. Congeduti, G. Redaelli
Page(s) 1301-1310. SRef-ID: 1680-7324/acp/2005-5-1301
Abstract Print Version (2391 KB) Discussion Paper Special Issue SRef Overview
01.06.2005
GPS radio occultation with CHAMP and SAC-C: global monitoring of thermal tropopause parameters
T. Schmidt, S. Heise, J. Wickert, G. Beyerle, C. Reigber
Page(s) 1473-1488. SRef-ID: 1680-7324/acp/2005-5-1473
Abstract Print Version (2837 KB) Discussion Paper Special Issue SRef Overview
15.06.2005
Variability of the Lagrangian turbulent diffusion in the lower stratosphere
B. Legras, I. Pisso, G. Berthet, F. Lefèvre
Page(s) 1605-1622. SRef-ID: 1680-7324/acp/2005-5-1605
Abstract Print Version (2424 KB) Discussion Paper Special Issue SRef Overview
30.05.2005
Analysis of water vapor LIDAR measurements during the MAP campaign: evidence of sub-structures of stratospheric intrusions
P. D'Aulerio, F. Fierli, F. Congeduti, G. Redaelli
Page(s) 1301-1310. SRef-ID: 1680-7324/acp/2005-5-1301
Abstract Print Version (2391 KB) Discussion Paper Special Issue SRef Overview
William Lahoz
COST MC Meeting
Sofia, May 19 2006
Publications
ACP Special Issue
22.06.2005
Retrieval of temperature and water vapor profiles from radio occultation refractivity and bending angle measurements using an
Optimal Estimation approach: a simulation study
A. von Engeln, G. Nedoluha
Page(s) 1665-1677. SRef-ID: 1680-7324/acp/2005-5-1665
Abstract Print Version (307 KB) Discussion Paper Special Issue SRef Overview
07.07.2005
Comparison of microwave satellite humidity data and radiosonde profiles: A survey of European stations
V. O. John, S. A. Buehler
Page(s) 1843-1853. SRef-ID: 1680-7324/acp/2005-5-1843
Abstract Print Version (317 KB) Discussion Paper Special Issue SRef Overview
25.07.2005
Retrieval of upper tropospheric water vapor and upper tropospheric humidity from AMSU radiances
A. Houshangpour, V. O. John, S. A. Buehler
Page(s) 2019-2028. SRef-ID: 1680-7324/acp/2005-5-2019
Abstract Print Version (9313 KB) Discussion Paper Special Issue SRef Overview
05.08.2005
Indications of thin cirrus clouds in the stratosphere at mid-latitudes
P. Keckhut, A. Hauchecorne, S. Bekki, A. Colette, C. David, J. Jumelet
Page(s) 3407-3414. SRef-ID: 1680-7324/acp/2005-5-3407
Abstract Print Version (420 KB) Discussion Paper Special Issue SRef Overview
William Lahoz
COST MC Meeting
Sofia, May 19 2006
Publications
QJRMS Special Issue
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To come out 2007
10,000 Euros to spend
Pavol Nejedlik to discuss with RMS
Page charges of 100 Euros (£75) per page
Colour figures 750 Euros (£500)
Papers from Sofia Workshop + COST 723 related
Suggest: first ten accepted papers will be supported with 1000
Euros each
• Editors: W.A. Lahoz + someone else
• Encourage submission by December 2006?
William Lahoz
COST MC Meeting
Sofia, May 19 2006
STSMs
Please use (http://www.cost723.org/docs)
Review committee: SB, WL & BL
9 STSMs
Marion Muller, Barbara Brzoska, Kostas
Elefterathos, Dieter Feist, Alan Geer, Adam
Jaczewski, Tuomo Suortti, William Lahoz and
Andreas Dornbrack
Poster at EGU (Feist) & several papers in the
pipeline
William Lahoz
COST MC Meeting
Sofia, May 19 2006
Final report
Suggested contents (not longer than 200 pages)
1) Introduction (William Lahoz, WL and Stefan Buehler, SB)
2) The Working groups 2.1) WG1 (SB) 2.2) WG2 (WL) 2.3) WG3
(Bernard Legras, BL)
3) Activities 3.1) STSMs (WL and SB) 3.2) Workshops 3.2.1) ESTEC
2004 (SB and BL) 3.2.2) Sofia 2006 (WL and SB) 3.3) Summer
School (WL, BL and SB) 3.4) Journal special issues 3.4.1)
ACP/ACPD (WL, SB) 3.4.2) QJRMS (WL, SB, BL) *TBC*
4) Achievements (WL, SB and BL)
5) Recommendations (WL, SB, BL)
A) Annexes (WL, SB and BL) A.1) Publications A.2) MC members A.3)
List of STSMs
William Lahoz
COST MC Meeting
Sofia, May 19 2006
New COST proposal
•
Integration of in situ networks and satellite data (Nik Kaempfer – suggest lead, with
contribution from other COST 723 members)
•
Preliminary proposal max 1500 words (3 pages) using web template
(http://www.cost.esf.org.opencall) by 31 May
•
Proponents are invited to indicate their preference for one Domain (Earth System
Science & Environmental Management). Proposals not fitting this broad disciplinary
structure are also welcome and will be assessed separately.
•
Proposals should include researchers from a minimum of five COST member states
and should network nationally funded research activities. No request for research
funds.
•
Their work plan should include no more than four targeted Working Groups and
include activities such as meetings, short term scientific missions, work shops,
conferences and outreach activities.
•
On average financial support of some € 90.000 p.a. as grant for up to 4 years can
be expected.
•
Full proposals invited for submission by 30 June, submission by 15 September
William Lahoz
COST MC Meeting
Sofia, May 19 2006
New COST proposal
Template:
Proposer details
Scientific content: Title, abstract, key words
Preferred COST domain
Text of proposal (max 10000 characters, ~1500 words): Background, problems; benefits;
Objectives, deliverables & expected scientific impact; scientific programme and
innovation; organization
Participants interested in work
PAY ATTENTION TO ASSESSMENT CRITERIA
William Lahoz
COST MC Meeting
Sofia, May 19 2006
New COST proposal
Assessment criteria:
• Impact of proposal
• Quality of proposal
• Management of proposal
• Presentation
• Overall recommendation
William Lahoz